Improved Coordinated Control Strategy for Hybrid STATCOM Using Required Reactive Power Estimation Method

Song, Sungyoon; Hwang, Sungchul; Jang, Gilsoo; Yoon, Michung

doi:10.1109/access.2019.2924296

Cited by 12 publications

(4 citation statements)

References 29 publications

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“…The control of DSTATCOM is executed by using DSP TMS 320 F 2812, it is directly connected to personal computer (PC) with JTAG Emulator, and the programming is Power factor 0.93 0.9 0.85 0.82 Fig. 13 Varying load active and reactive power done through CCS V3.3 [28,29]. The sensed current and voltage sensor signals of the reactive power are calculated using DSP programming.…”

Section: With Dstatcommentioning

confidence: 99%

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Coordinated control of DSTATCOM with switchable capacitor bank in a secondary radial distribution system for power factor improvement

Rafi¹,

Prasad

Vithal³

2022

Journal of Electrical Systems and Inf Technol

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This paper exhibits the coordinated control of 30 kVAr Distribution STATic synchronous COMpensator (DSTATCOM) with 125 kVAr Switchable Capacitor Banks for compensation of reactive power in a 750 kVA secondary radial distribution system. With the control of reactive power in a radial distribution system, the power factor can be improved near to unity. The selected radial distribution system mainly feeding power to vital loads of an Educational Institution. In this paper, the study of 750 kVA secondary radial distribution system is analyzed in terms of electrical power system of institute, power consumption pattern and tariff related issues. Some conclusions to improve the system performance in terms of power factor and reduction in tariff were drawn. The coordinated control of switchable capacitor bank and DSTATCOM performance depends on the calculation of the reference source currents that generates the gating pulses of the voltage source converter-based DSTATCOM. For this purpose, the control strategy adopted is Real and Reactive power (PQ) control, Synchronous Reference Frame theory, Back Propagation Control algorithm and Adaptive Linear (ADALINE) control is implemented in this system using MATLAB/SIMULINK software. Generation of the PWM pulses triggers the IGBT of the VSI-based DSTATCOM. This is achieved using DSP TMS 320 F 2812, a 32-bit processor that is programmed with CCS V3.3 and C2000 embedded code generation tool using MATLAB/Simulink, and the same is being executed with code composer studio V 6.0.1. The performance of the selected secondary radial distribution system is analyzed experimentally in a hardware prototype to evaluate the effect of DSTATCOM and switchable capacitor bank.

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Section: With Dstatcommentioning

confidence: 99%

“…the switching times of the MSCs while maximizing the reserve reactive power margin of the STATCOM in transient state [13]. Control block diagram of DSTATCOM is shown in Fig.…”

mentioning

confidence: 99%

Coordinated control of DSTATCOM with switchable capacitor bank in a secondary radial distribution system for power factor improvement

Rafi¹,

Prasad

Vithal³

2022

Journal of Electrical Systems and Inf Technol

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“…The STATCOM represents an advanced and continuously adjustable static reactive power compensation device. However, the STATCOM has certain disadvantages, such as high DC-link voltage, large capacitance, and high cost [12][13][14][15] . Therefore, how to achieve continuous but economical compensation for high-capacity reactive power has become a leading research topic in the field of electrical engineering.…”

Section: Introductionmentioning

confidence: 99%

Improved Hybrid Reactive Power Compensation System Based on FC and STATCOM and Its Control Method

Liang

Peng

Xiong

et al. 2022

Chin. J. Electr. Eng.

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The purpose of this study is to solve the main problems in distribution networks, including increased line loss and reduced power supply quality caused by insufficient capacitive reactive power. To reduce the capacity, voltage, and current stress of an active module of a compensation device and improve the cost performance of the device, an improved hybrid reactive power compensation system based on a fixed capacitor (FC) and a static synchronous compensator (STATCOM) is proposed. The topological structure and basic operating principle of the proposed reactive power compensation system are introduced. In addition, from the perspectives of output voltage, current, power, loss of the active part, and system compensation cost, the performances of the proposed reactive compensator and the inductively coupled STATCOM (L-STATCOM) are compared and analyzed. Furthermore, the key parameters of the proposed system are designed, and the joint optimization control strategy of the FC and STATCOM is studied.The correctness and effectiveness of the proposed topology structure and control method are verified by simulations.

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“…25 Among conventional non-linear control systems such as hysteresis control, model fuzzy control, predictive control, and neural network-based controllers, the FCS-MPC control is an interesting method for controlling MLIs. 26 This is mainly due to the simplicity of the concept, the intuitive approach for real-time implementation, achieving high dynamics, the possibility of handling multiple objectives within a cost function, and employing the inherently discrete nature of power inverters to optimize control objectives. [27][28][29] Several studies have been performed in the literature that demonstrate the advantages of FCS-MPC control methods in STATCOM applications.…”

mentioning

confidence: 99%

Finite control set model predictive control for static synchronous compensator based on hybrid cascaded H‐bridge and neutral point clamped multilevel inverter

Monfared

Miremad

Iman‐Eini

et al. 2020

Int Trans Electr Energ Syst

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Summary This paper develops model predictive control with a finite control set (FCS‐MPC) for a static synchronous compensator (STATCOM) based on hybrid cascaded H‐bridge and neutral point clamped (HC‐HNPC) multilevel inverter. By applying FCS‐MPC to basic multilevel structures such as the cascaded H‐bridge (CHB), the dynamic performance is improved; but, as the number of output voltage levels increases, the method suffers from a high computation burden as a result of a significant number of switching states. In HC‐HNPC based STATCOM, the number of power switches and switching states is reduced compared to CHB STATCOM for an equal number of output voltage levels. As a result, while keeping the number of output voltage levels the same as CHB, the FCS‐MPC computational burden decreases, and the control objectives are achieved easier. Furthermore, HC‐HNPC STATCOM as a hybrid multilevel STATCOM contains different types of cells with different capacitors voltage. Utilizing the introduced FCS‐MPC, each capacitor voltage is kept balanced without using a complex balancing system. For a detailed investigation, a single‐phase 9‐level HC‐HNPC is employed in this research. The FCS‐MPC control is developed for 9‐level HC‐HNPC STATCOM and the mathematical equations are extracted. Finally, the control performance is verified by simulation and validated with experimental results.

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Improved Coordinated Control Strategy for Hybrid STATCOM Using Required Reactive Power Estimation Method

Cited by 12 publications

References 29 publications

Coordinated control of DSTATCOM with switchable capacitor bank in a secondary radial distribution system for power factor improvement

Coordinated control of DSTATCOM with switchable capacitor bank in a secondary radial distribution system for power factor improvement

Improved Hybrid Reactive Power Compensation System Based on FC and STATCOM and Its Control Method

Finite control set model predictive control for static synchronous compensator based on hybrid cascaded H‐bridge and neutral point clamped multilevel inverter

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